To the OP - have you been able to get XMP to work on this board yet?
I'm working on a Rampage VI Extreme Omega as well and there's a few weird things going on. Never had this problem before on any other asus board, asrock, gigabyte, etc. It's like it just refuses to do anything with memory.
1. Pretty sure there's somethign wrong with CPU OC. I'm testing AVX2 with an H150i pro on 9980XE. I know it shouldn't do That well but anything over 3.8GHz is impossible. This is without memory OC.
2. Has to be something wrong with memory OC. I've tried tweaking memory voltage, system agent, vccio, vtt, and lowering ram frequency from 3200 down to 2666 (with xmp on), and loosening timings. Nothing works, cores crash instantly on p95. With memory at auto and my CPU "oc" its fine, can pass overnight - but once anything with memory is set up it can't do it.
Tried CPU swap, tried memory kit swap.
This is with a 128GB kit 3200c14.
oh and edit - on latest 0602 BIOS
ASRock Z390 Taichi
Gigabyte GeForce RTX 2080 Gaming OC White 8G
Samsung 970 EVO m.2 500GB
Corsair H100i Platinum RGB SE 240mm
CORSAIR Crystal 570X RGB Mid-Tower Case
Razer Black Widow
Logitech G Powerplay Wireless Charging System
SteelSeries Arctic Pro w/GameDAC
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